Anti-lost laser page turning pen

The utility model relates to the technical field of laser page turning pens. The anti-lost laser page turning pen comprises a pen body, including a body, the end, away from the laser outlet, of the body is fixedly connected with an outer threaded pipe. A pen cap is connected to the side, away from the body, of the outer threaded pipe. A threaded groove is formed in the side, close to the body, ofthe pen cap and in the position of the outer threaded pipe. A square plate is connected to the position, away from the threaded groove, in the pen cap. One side, far away from the body, of the squareplate is fixedly connected with a USB interface; sliding blocks are fixedly connected to the two ends, close to the pen cap, of the square plate. A sliding groove is correspondingly formed in the pencap and in the position of the sliding block; a round rod is fixedly connected to the side, away from the square plate, of the sliding block. By arranging the outage alarm, the square plate, the USB interface, the button and th